108 DESCRIPTION OP INSECTS 



is secreted from the anal segment, that diffuses a strong odor, 

 very similar to that of the flowers of the Calycanthus. 



2. G. *emarginatus blackish-bronze, beneath blackish ; ely- 

 tra smooth, each simply rounded at tip. 



Length from nine-twentieths to eleven-twentieths of an inch. 

 Bodij blackish-green, slightly bronzed, beneath piceous-black 



or fuliginous. 

 Head blackish-green ; labrum at tip and antejmce at base ci- 

 liated with white hairs. 

 Thorax impunctured ; scutel none. 



Elytra with very minute, obsolete, distant punctures, stria^ 

 seven or eight, more distinct in the male, obsolete, each 

 elytron rounded at tip, not sinuated nor dentated. 

 Poststernum punctured before, punctures profound and dis- 

 tant; feet, posterior pairs testaceous, anterior pair in the 

 male Furnished with a prominent angle or oi^tuse spine 

 near the tip of the anterior edge of the thigh. 

 The elytra appear emarginated at the tip of the suture 

 when at rest, in consequence of each of them having a round- 

 ed termination. This species has been hitherto confounded 

 with the Americanus with whicli it associates indiscriminately, 

 but is suffrcicnlly distinct by the armature of the anterior 

 femora of the male, and by the simply rotund termination of 

 the elytra in both sexes. 



3. G. *analis l)lack sliglitly bronzed ; elytra with punctured 

 strife ; thorax with a transverse indented hue. 



Length one-fifth of an inch. 



Body beneath impunctured and tinged with piceous. 



Front between the eyes with two impressed dots ; labrum at 

 tip and palpi at base ciliated with white hairs ; mouth be- 

 neath piceous; labial palpi testaceous, blackisii at tip. 



Thorax with a transverse indented line rather i)efore the 

 middle not attaining to the lateral margins, and a short ob- 

 lique line on each side beiiind it curving towards the la- 

 teral edge ; scutel distinct, subtriangular. 



